Abstract
In this work, an interleaved inverter with peak current control is investigated to supply low wattage metal halide lamps. The proposed topology provides a low frequency square current waveform that theoretically has no high frequency ripple, thus allowing acoustic resonances free operation of these lamps. The series igniter stage equivalent is chosen so that its effect is neglected. The operation principle, the control scheme and the power stage are presented. After carrying out the analysis, a built prototype has been tested in the laboratory, showing a good behavior as a lamp ballast for these lamps. The obtained results are presented, along with conclusions and future developments.
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